Three-Dimensional Meso-Scale Modeling of Concrete Incorporating Actual Shape of Coarse Aggregate

Key Points

• The central aim is to develop a new 3D meso-scale model of concrete capturing the actual shape of coarse aggregates and reinforcement.
• Develop a meso-scale model consisting of a two-phase structure of mortar and coarse aggregates.
• Utilize 3D scanners to replicate the surface shape of coarse aggregates from real samples.
• Implement a random filling algorithm to arrange coarse aggregates while meeting particle size distribution without overlaps.
• Successfully reproduced the 3D meso-scale model of concrete with realistic aggregate shapes and size distributions.
• Demonstrated numerical examples of the 3D models for prism concrete and reinforced concrete components.